| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.fo.extensions; |
| |
| import java.util.HashMap; |
| import java.util.Set; |
| |
| import org.apache.xmlgraphics.util.QName; |
| |
| import org.apache.fop.fo.ElementMapping; |
| import org.apache.fop.fo.FONode; |
| import org.apache.fop.fo.UnknownXMLObj; |
| import org.apache.fop.fo.extensions.destination.Destination; |
| |
| /** |
| * Element mapping for FOP's proprietary extension to XSL-FO. |
| */ |
| public class ExtensionElementMapping extends ElementMapping { |
| |
| /** The FOP extension namespace URI */ |
| public static final String URI = "http://xmlgraphics.apache.org/fop/extensions"; |
| |
| /** The standard XML prefix for elements and attributes in this namespace. */ |
| public static final String STANDARD_PREFIX = "fox"; |
| |
| private static final Set<String> PROPERTY_ATTRIBUTES |
| = new java.util.HashSet<String>(); |
| |
| static { |
| //These are FOP's standard extension properties (fox:*) |
| PROPERTY_ATTRIBUTES.add("block-progression-unit"); |
| PROPERTY_ATTRIBUTES.add("widow-content-limit"); |
| PROPERTY_ATTRIBUTES.add("orphan-content-limit"); |
| PROPERTY_ATTRIBUTES.add("internal-destination"); |
| PROPERTY_ATTRIBUTES.add("disable-column-balancing"); |
| //These are FOP's extension properties for accessibility |
| PROPERTY_ATTRIBUTES.add("alt-text"); |
| PROPERTY_ATTRIBUTES.add("header"); |
| } |
| |
| /** |
| * Constructor. |
| */ |
| public ExtensionElementMapping() { |
| namespaceURI = URI; |
| } |
| |
| /** |
| * Initialize the data structures. |
| */ |
| protected void initialize() { |
| if (foObjs == null) { |
| foObjs = new HashMap<String, Maker>(); |
| foObjs.put("outline", new UnknownXMLObj.Maker(URI)); |
| foObjs.put("label", new UnknownXMLObj.Maker(URI)); |
| foObjs.put("destination", new DestinationMaker()); |
| foObjs.put("external-document", new ExternalDocumentMaker()); |
| } |
| } |
| |
| static class DestinationMaker extends ElementMapping.Maker { |
| public FONode make(FONode parent) { |
| return new Destination(parent); |
| } |
| } |
| |
| static class ExternalDocumentMaker extends ElementMapping.Maker { |
| public FONode make(FONode parent) { |
| return new ExternalDocument(parent); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| public String getStandardPrefix() { |
| return STANDARD_PREFIX; |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean isAttributeProperty(QName attributeName) { |
| if (!URI.equals(attributeName.getNamespaceURI())) { |
| throw new IllegalArgumentException("The namespace URIs don't match"); |
| } |
| return PROPERTY_ATTRIBUTES.contains(attributeName.getLocalName()); |
| } |
| |
| } |